Sausage Croissant Breakfast Casserole
Sausage Croissant Breakfast Casserole is an easy, make-ahead breakfast recipe that is sure to be a crowd pleaser! It's a croissant breakfast casserole made with mild Italian sausage, croissants, eggs, milk, and cheddar cheese, and is perfect for a weekend breakfast or brunch.
Quick Look: Sausage Croissant Breakfast Casserole
Ready In: 1 hour 10 minutes
Serves: 10
Calories: 800 Calories
Main Ingredients: breakfast sausage, croissants, eggs, cheese
Why You'll Love It: this Sausage Croissant Breakfast Casserole is easy to make, can be prepped ahead of time, and is always a crowd pleaser.
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I love a good breakfast casserole. There are just so many options when it comes to how to make them, and I love experimenting with them. While my Sausage Egg and Cheese Biscuit Breakfast Casserole is our go-to staple, this Sausage Croissant Breakfast Casserole is giving it a run for its money!
One of the things that stands out about this sausage croissant casserole is that you can make it ahead of time. Prep the entire thing the night before and then all you have to do in the morning is pop it in the oven! Served with Raspberry Mimosas, and you've got my ideal kind of weekend or holiday breakfast.
Looking for a sweet breakfast recipe to go with this sausage breakfast casserole? Check out my Brioche French Toast Casserole, Blueberry Croissant Breakfast Casserole, and Maple Muffins!
Key Ingredients
- Croissants - note: these are different than crescent rolls! I'm talking about the buttery, delicious croissants you'd buy from a bakery, not the ones from a can. I usually buy the croissants from the Costco bakery.
- Ground Mild Italian Sausage - I love the flavor of Italian sausage, but you can use breakfast sausage too, if you prefer! Turkey sausage, bacon, and ham would all work as well! In fact, I have a recipe for Ham Croissant Breakfast Casserole, too.
- Shredded Cheddar Cheese - cheddar cheese pairs really well with the croissant and sausage in this breakfast casserole recipe.
Substitutions and Variations
Different Meat - If you don't like sausage, you can add 2 cups of diced ham to the casserole instead, like in my Ham Tater Tot Breakfast Casserole. In addition, you could use 6 slices of cooked bacon, or the same amount of chorizo sausage. I also have a Chorizo Hash Brown Breakfast Casserole recipe.
Add Vegetables - if you want to increase the nutrition a bit in this casserole, you can add some veggies like mushrooms, bell peppers, onion, green onions, spinach, and zucchini. I would saute them first in some olive oil so they are pre-cooked before adding them to the casserole.
Different cheese. I used shredded cheddar cheese, however you can use Swiss, gruyere cheese, shredded mozzarella, or Colby Jack if you like!
How to Make Sausage Croissant Breakfast Casserole
Photo 1. Brown the sausage in a large skillet over medium heat and cook until it's browned, breaking it into small pieces as you go. Oh and if you don't have one of these for cooking ground meat, you're missing out!
Photo 2. Whisk together the eggs, milk, dijon mustard, salt, and black pepper in a large bowl until it's all well combined.
Photo 3. Cut the croissants into bite-sized pieces and place them in the bottom of a greased 9 x 13-inch baking dish. Sprinkle the browned sausage and shredded cheese on top of the croissants. Then pour the egg mixture on top of the sausage and cheese.
Photo 4. At this point, you can either cover with plastic wrap or foil, place in the refrigerator, and refrigerate overnight, or bake! To bake, preheat your oven to 350 degrees and bake for 45-50 minutes. The top should be golden brown and the eggs should be set in the middle.
Overnight Option: If you make this into an overnight croissant casserole, pull the casserole out of the fridge in the morning while you preheat the oven. You want this sausage croissant casserole to come to about room temperature, which will take around 30 minutes. Bake the casserole in the preheated oven for about 50-55 minutes. It will take a little bit longer than cooking it right away, as the casserole will still be starting from a bit colder since it's been in the fridge. It's such an easy and delicious recipe!
Expert Tips
Make Ahead - this recipe is so great for prepping ahead of time and baking in the morning. pull the casserole out of the fridge in the morning while you preheat the oven. You want this sausage croissant casserole to come to about room temperature, which will take around 30 minutes. Bake the casserole in the preheated oven for about 50-55 minutes. It will take a little bit longer than cooking it right away, as the casserole will still be starting from a bit colder since it's been in the fridge.
Storage - store leftovers in an airtight container in the fridge for 3-5 days.
Sausage Croissant Breakfast Casserole Recipe FAQs
Yes. This breakfast casserole is super easy to prep ahead of time. Simply cover and refrigerate until you're ready to bake. Add 5-10 minutes to the baking time, as you are starting to bake it from a colder temperature.
Yes. To freeze unbaked casserole, assemble the casserole without baking, cover tightly with foil, and freeze. When ready to eat, thaw overnight in the fridge and add 10-20 minutes to the baking time to ensure it is cooked through. To freeze baked casserole, allow the casserole to cool completely, wrap it securely in layers of plastic wrap and aluminum foil, and freeze. To reheat, thaw completely and bake at 350 degrees for 20-30 minutes.
To reheat, warm in a 350°F oven for 15-20 minutes (covered with foil to prevent over-browning) or microwave in 30-second intervals until heated through.
Other Breakfast Recipes to Consider
If you make this recipe, please let me know! Leave a ⭐️⭐️⭐️⭐️⭐️ rating on this recipe below and leave a comment, or take a photo and tag me on Instagram with #greensnchocolate
Sausage Croissant Breakfast Casserole
Ingredients
- 1 lb Italian sausage
- 6 cups cubed croissants about 5-6 croissants
- 1 ½ cups shredded cheddar cheese
- 8 large eggs
- 1 ¼ cup milk
- 2 teaspoon dijon mustard
- ½ teaspoon salt
- ½ teaspoon pepper
Instructions
- In a skillet, brown the sausage over medium heat, breaking it into pieces as it cooks.
- Spray a 9x13" baking dish with cooking spray.
- Spread the cubed croissants on the bottom of the baking dish. Sprinkle with the cooked sausage and shredded cheese.
- In a medium bowl, whisk together the eggs, milk, dijon mustard, salt, and pepper.
- Pour the egg mixture over the croissants/sausage/cheese.
- Cover and refrigerate overnight.
- In the morning, preheat the oven to 350 degrees.
- Bake the casserole in the preheated oven for 45-55 minutes, until golden brown and no longer wet in the middle.
- Serve and enjoy!
Love, Love, Love this Croissant Sausage Breakfast Casserole! So easy to make, and everyone Loves it!
So easy and soooo good! Love the use of croissants. This will become a new staple!
This casserole is fabulous! Just put another one in the fridge for breakfast tomorrow. I used ham and sausage . This is the first time I put the Dijon mustard in and I'm looking forward to tasting if there is a difference.
Is the casserole baked with the foil on?
No, bake this uncovered.
Thank you, I came here for this answer,mine goes in the oven in the morning
I was looking for a recipe I could put together quickly that tasted great, and I found it! Used leftover Costco croissants I didn't want to throw out, threw it together before bed, and baked it in the morning. Everyone loved it!
I have been looking for just the right recipe to make this for my family! Thank you!